Legionnaires' disease is an illness caused by a type of bacteria called Legionella. The disease is a form of pneumonia (lung infection) usually found in the summer and early fall, although it can occur year round. Between 8,000- 18,000 people are hospitalized with Legionnaires' disease in the U.S. every year.

Be aware that symptoms usually begin 2-14 days after exposure to the bacteria. A milder form of the infection (caused by the same type of bacteria) is called Pontiac Fever. The symptoms are usually the same, however, there is no pneumonia.

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Know the treatment for the infection. The majority of cases can be successfully treated with antibiotics. People who are in good health will generally recover.

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Contact your doctor or local health department if you suspect you may have been exposed to the bacteria. If you traveled in the last two weeks before becoming ill, be sure to mention this to your doctor.